Step Down 7 Click

Step Down 7 Click is a compact add-on board that converts higher voltages into a lower voltages level. This board features the MAX17624, a synchronous step-down converter with integrated MOSFETs from Analog Devices.

Click Product page

Click library

• Author : Stefan Ilic
• Date : May 2023.
• Type : I2C type

Software Support

We provide a library for the Step Down 7 Click as well as a demo application (example), developed using MikroElektronika compilers. The demo can run on all the main MikroElektronika development boards.

Package can be downloaded/installed directly from NECTO Studio Package Manager(recommended way), downloaded from our LibStock™ or found on Mikroe github account.

Library Description

This library contains API for Step Down 7 Click driver.

Standard key functions :

• stepdown7_cfg_setup Config Object Initialization function.

  void stepdown7_cfg_setup ( stepdown7_cfg_t *cfg );

• stepdown7_init Initialization function.

  err_t stepdown7_init ( stepdown7_t *ctx, stepdown7_cfg_t *cfg );

• stepdown7_default_cfg Click Default Configuration function.

  err_t stepdown7_default_cfg ( stepdown7_t *ctx );

Example key functions :

• stepdown7_set_mode Step Down 5 mode selection function.

  void stepdown7_set_mode ( stepdown7_t *ctx, uint8_t mode );

• stepdown7_get_pg_state Step Down 5 get PG pin state function.

  uint8_t stepdown7_get_pg_state ( stepdown7_t *ctx );

• stepdown7_set_output Step Down 7 set output voltage.

  err_t stepdown7_set_output ( stepdown7_t *ctx, uint8_t voltage );

Example Description

This library contains API for the Step Down 7 Click driver. This driver provides the functions to set the output voltage treshold.

The demo application is composed of two sections :

Application Init

Initialization of I2C module and log UART. After driver initialization, default settings sets output voltage to 1.5 V.

void application_init ( void ) 
{
    log_cfg_t log_cfg;  /**< Logger config object. */
    stepdown7_cfg_t stepdown7_cfg;  /**< Click config object. */

    /** 
     * Logger initialization.
     * Default baud rate: 115200
     * Default log level: LOG_LEVEL_DEBUG
     * @note If USB_UART_RX and USB_UART_TX 
     * are defined as HAL_PIN_NC, you will 
     * need to define them manually for log to work. 
     * See @b LOG_MAP_USB_UART macro definition for detailed explanation.
     */
    LOG_MAP_USB_UART( log_cfg );
    log_init( &logger, &log_cfg );
    log_info( &logger, " Application Init " );

    // Click initialization.
    stepdown7_cfg_setup( &stepdown7_cfg );
    STEPDOWN7_MAP_MIKROBUS( stepdown7_cfg, MIKROBUS_1 );
    if ( I2C_MASTER_ERROR == stepdown7_init( &stepdown7, &stepdown7_cfg ) ) 
    {
        log_error( &logger, " Communication init." );
        for ( ; ; );
    }

    if ( STEPDOWN7_ERROR == stepdown7_default_cfg ( &stepdown7 ) )
    {
        log_error( &logger, " Default configuration." );
        for ( ; ; );
    }
    log_info( &logger, " Application Task " );
}

Application Task

This example demonstrates the use of the Step Down 7 Click board™ by changing output voltage every 5 seconds starting from 1.5 V up to 3.3 V.

void application_task ( void ) 
{
    for ( uint8_t n_cnt = STEPDOWN7_OUTPUT_1V5; n_cnt <= STEPDOWN7_OUTPUT_3V3; n_cnt++ )
    {
        stepdown7_set_output( &stepdown7, n_cnt );
        log_printf( &logger, " Selected output is:" );
        print_selected_output_level ( n_cnt );
        Delay_ms ( 1000 );
        Delay_ms ( 1000 );
        Delay_ms ( 1000 );
        Delay_ms ( 1000 );
        Delay_ms ( 1000 );
    }
}

The full application code, and ready to use projects can be installed directly from NECTO Studio Package Manager(recommended way), downloaded from our LibStock™ or found on Mikroe github account.

Other Mikroe Libraries used in the example:

• MikroSDK.Board
• MikroSDK.Log
• Click.StepDown7

Additional notes and informations

Depending on the development board you are using, you may need USB UART Click, USB UART 2 Click or RS232 Click to connect to your PC, for development systems with no UART to USB interface available on the board. UART terminal is available in all MikroElektronika compilers.